The last time a Big 12 team won a national championship, Baylor quarterback Bryce Petty was still in junior high. And the last national title game that merely included a Big 12 program, Oklahoma quarterback Trevor Knight had just passed his driver's test. Yet with the BCS era dead and gone -- and conference realignment in the rearview mirror -- the Big 12 is out to re-establish its legitimacy in the debut season of the College Football Playoff.